1 files changed, 146 insertions, 0 deletions
diff --git a/Godeps/_workspace/src/github.com/robertkrimen/otto/type_regexp.go b/Godeps/_workspace/src/github.com/robertkrimen/otto/type_regexp.go
new file mode 100644
index 000000000..57fe31640
--- /dev/null
+++ b/Godeps/_workspace/src/github.com/robertkrimen/otto/type_regexp.go
@@ -0,0 +1,146 @@
+package otto
+
+import (
+	"fmt"
+	"regexp"
+	"unicode/utf8"
+
+	"github.com/robertkrimen/otto/parser"
+)
+
+type _regExpObject struct {
+	regularExpression *regexp.Regexp
+	global            bool
+	ignoreCase        bool
+	multiline         bool
+	source            string
+	flags             string
+}
+
+func (runtime *_runtime) newRegExpObject(pattern string, flags string) *_object {
+	self := runtime.newObject()
+	self.class = "RegExp"
+
+	global := false
+	ignoreCase := false
+	multiline := false
+	re2flags := ""
+
+	// TODO Maybe clean up the panicking here... TypeError, SyntaxError, ?
+
+	for _, chr := range flags {
+		switch chr {
+		case 'g':
+			if global {
+				panic(runtime.panicSyntaxError("newRegExpObject: %s %s", pattern, flags))
+			}
+			global = true
+		case 'm':
+			if multiline {
+				panic(runtime.panicSyntaxError("newRegExpObject: %s %s", pattern, flags))
+			}
+			multiline = true
+			re2flags += "m"
+		case 'i':
+			if ignoreCase {
+				panic(runtime.panicSyntaxError("newRegExpObject: %s %s", pattern, flags))
+			}
+			ignoreCase = true
+			re2flags += "i"
+		}
+	}
+
+	re2pattern, err := parser.TransformRegExp(pattern)
+	if err != nil {
+		panic(runtime.panicTypeError("Invalid regular expression: %s", err.Error()))
+	}
+	if len(re2flags) > 0 {
+		re2pattern = fmt.Sprintf("(?%s:%s)", re2flags, re2pattern)
+	}
+
+	regularExpression, err := regexp.Compile(re2pattern)
+	if err != nil {
+		panic(runtime.panicSyntaxError("Invalid regular expression: %s", err.Error()[22:]))
+	}
+
+	self.value = _regExpObject{
+		regularExpression: regularExpression,
+		global:            global,
+		ignoreCase:        ignoreCase,
+		multiline:         multiline,
+		source:            pattern,
+		flags:             flags,
+	}
+	self.defineProperty("global", toValue_bool(global), 0, false)
+	self.defineProperty("ignoreCase", toValue_bool(ignoreCase), 0, false)
+	self.defineProperty("multiline", toValue_bool(multiline), 0, false)
+	self.defineProperty("lastIndex", toValue_int(0), 0100, false)
+	self.defineProperty("source", toValue_string(pattern), 0, false)
+	return self
+}
+
+func (self *_object) regExpValue() _regExpObject {
+	value, _ := self.value.(_regExpObject)
+	return value
+}
+
+func execRegExp(this *_object, target string) (match bool, result []int) {
+	if this.class != "RegExp" {
+		panic(this.runtime.panicTypeError("Calling RegExp.exec on a non-RegExp object"))
+	}
+	lastIndex := this.get("lastIndex").number().int64
+	index := lastIndex
+	global := this.get("global").bool()
+	if !global {
+		index = 0
+	}
+	if 0 > index || index > int64(len(target)) {
+	} else {
+		result = this.regExpValue().regularExpression.FindStringSubmatchIndex(target[index:])
+	}
+	if result == nil {
+		//this.defineProperty("lastIndex", toValue_(0), 0111, true)
+		this.put("lastIndex", toValue_int(0), true)
+		return // !match
+	}
+	match = true
+	startIndex := index
+	endIndex := int(lastIndex) + result[1]
+	// We do this shift here because the .FindStringSubmatchIndex above
+	// was done on a local subordinate slice of the string, not the whole string
+	for index, _ := range result {
+		result[index] += int(startIndex)
+	}
+	if global {
+		//this.defineProperty("lastIndex", toValue_(endIndex), 0111, true)
+		this.put("lastIndex", toValue_int(endIndex), true)
+	}
+	return // match
+}
+
+func execResultToArray(runtime *_runtime, target string, result []int) *_object {
+	captureCount := len(result) / 2
+	valueArray := make([]Value, captureCount)
+	for index := 0; index < captureCount; index++ {
+		offset := 2 * index
+		if result[offset] != -1 {
+			valueArray[index] = toValue_string(target[result[offset]:result[offset+1]])
+		} else {
+			valueArray[index] = Value{}
+		}
+	}
+	matchIndex := result[0]
+	if matchIndex != 0 {
+		matchIndex = 0
+		// Find the rune index in the string, not the byte index
+		for index := 0; index < result[0]; {
+			_, size := utf8.DecodeRuneInString(target[index:])
+			matchIndex += 1
+			index += size
+		}
+	}
+	match := runtime.newArrayOf(valueArray)
+	match.defineProperty("input", toValue_string(target), 0111, false)
+	match.defineProperty("index", toValue_int(matchIndex), 0111, false)
+	return match
+}